@misc{indiciae69208828cf20,
  title = {Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River basin, 1993},
  author = {Dana W. Kolpin and E. Michael Thurman},
  year = {1995},
  doi = {10.3133/cir1120g},
  url = {https://pubs.usgs.gov/publication/cir1120G},
  note = {Source identifier: cir1120G}
}